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freebsd-dev/sys/dev/qlnx/qlnxe/ecore_ll2.c
David C Somayajulu fa790ea99f Add RDMA (iWARP and RoCEv1) support 
David Somayajulu (davidcs): Overall RDMA Driver infrastructure and iWARP
Anand Khoje (akhoje@marvell.com): RoCEv1 verbs implementation

MFC after:5 days
2019-01-31 00:09:38 +00:00

2212 lines
64 KiB
C
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/*
* Copyright (c) 2018-2019 Cavium, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* File : ecore_ll2.c
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "bcm_osal.h"
#include "ecore.h"
#include "ecore_status.h"
#include "ecore_ll2.h"
#include "reg_addr.h"
#include "ecore_int.h"
#include "ecore_cxt.h"
#include "ecore_sp_commands.h"
#include "ecore_hw.h"
#include "reg_addr.h"
#include "ecore_dev_api.h"
#include "ecore_iro.h"
#include "ecore_gtt_reg_addr.h"
#include "ecore_ooo.h"
#include "ecore_hw.h"
#include "ecore_mcp.h"
#define ECORE_LL2_RX_REGISTERED(ll2) ((ll2)->rx_queue.b_cb_registred)
#define ECORE_LL2_TX_REGISTERED(ll2) ((ll2)->tx_queue.b_cb_registred)
#ifdef _NTDDK_
#pragma warning(push)
#pragma warning(disable : 28167)
#pragma warning(disable : 28123)
#pragma warning(disable : 28121)
#endif
static struct ecore_ll2_info *
__ecore_ll2_handle_sanity(struct ecore_hwfn *p_hwfn,
u8 connection_handle,
bool b_lock, bool b_only_active)
{
struct ecore_ll2_info *p_ll2_conn, *p_ret = OSAL_NULL;
if (connection_handle >= ECORE_MAX_NUM_OF_LL2_CONNECTIONS)
return OSAL_NULL;
if (!p_hwfn->p_ll2_info)
return OSAL_NULL;
/* TODO - is there really need for the locked vs. unlocked
* variant? I simply used what was already there.
*/
p_ll2_conn = &p_hwfn->p_ll2_info[connection_handle];
if (b_only_active) {
if (b_lock)
OSAL_MUTEX_ACQUIRE(&p_ll2_conn->mutex);
if (p_ll2_conn->b_active)
p_ret = p_ll2_conn;
if (b_lock)
OSAL_MUTEX_RELEASE(&p_ll2_conn->mutex);
} else {
p_ret = p_ll2_conn;
}
return p_ret;
}
static struct ecore_ll2_info *
ecore_ll2_handle_sanity(struct ecore_hwfn *p_hwfn,
u8 connection_handle)
{
return __ecore_ll2_handle_sanity(p_hwfn, connection_handle,
false, true);
}
static struct ecore_ll2_info *
ecore_ll2_handle_sanity_lock(struct ecore_hwfn *p_hwfn,
u8 connection_handle)
{
return __ecore_ll2_handle_sanity(p_hwfn, connection_handle,
true, true);
}
static struct ecore_ll2_info *
ecore_ll2_handle_sanity_inactive(struct ecore_hwfn *p_hwfn,
u8 connection_handle)
{
return __ecore_ll2_handle_sanity(p_hwfn, connection_handle,
false, false);
}
#ifndef LINUX_REMOVE
/* TODO - is this really been used by anyone? Is it a on future todo list? */
enum _ecore_status_t
ecore_ll2_get_fragment_of_tx_packet(struct ecore_hwfn *p_hwfn,
u8 connection_handle,
dma_addr_t *p_addr,
bool *b_last_fragment)
{
struct ecore_ll2_tx_packet *p_pkt;
struct ecore_ll2_info *p_ll2_conn;
u16 cur_frag_idx = 0;
p_ll2_conn = ecore_ll2_handle_sanity(p_hwfn, connection_handle);
if (p_ll2_conn == OSAL_NULL)
return ECORE_INVAL;
p_pkt = &p_ll2_conn->tx_queue.cur_completing_packet;
if (!p_ll2_conn->tx_queue.b_completing_packet || !p_addr)
return ECORE_INVAL;
if (p_ll2_conn->tx_queue.cur_completing_bd_idx == p_pkt->bd_used)
return ECORE_INVAL;
/* Packet is available and has at least one more frag - provide it */
cur_frag_idx = p_ll2_conn->tx_queue.cur_completing_bd_idx++;
*p_addr = p_pkt->bds_set[cur_frag_idx].tx_frag;
if (b_last_fragment)
*b_last_fragment = p_pkt->bd_used ==
p_ll2_conn->tx_queue.cur_completing_bd_idx;
return ECORE_SUCCESS;
}
#endif
static void ecore_ll2_txq_flush(struct ecore_hwfn *p_hwfn,
u8 connection_handle)
{
bool b_last_packet = false, b_last_frag = false;
struct ecore_ll2_tx_packet *p_pkt = OSAL_NULL;
struct ecore_ll2_info *p_ll2_conn;
struct ecore_ll2_tx_queue *p_tx;
unsigned long flags = 0;
dma_addr_t tx_frag;
p_ll2_conn = ecore_ll2_handle_sanity_inactive(p_hwfn,
connection_handle);
if (p_ll2_conn == OSAL_NULL)
return;
p_tx = &p_ll2_conn->tx_queue;
OSAL_SPIN_LOCK_IRQSAVE(&p_tx->lock, flags);
while (!OSAL_LIST_IS_EMPTY(&p_tx->active_descq)) {
p_pkt = OSAL_LIST_FIRST_ENTRY(&p_tx->active_descq,
struct ecore_ll2_tx_packet,
list_entry);
if (p_pkt == OSAL_NULL)
break;
#if defined(_NTDDK_)
#pragma warning(suppress : 6011 28182)
#endif
OSAL_LIST_REMOVE_ENTRY(&p_pkt->list_entry,
&p_tx->active_descq);
b_last_packet = OSAL_LIST_IS_EMPTY(&p_tx->active_descq);
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry,
&p_tx->free_descq);
OSAL_SPIN_UNLOCK_IRQSAVE(&p_tx->lock, flags);
if (p_ll2_conn->input.conn_type == ECORE_LL2_TYPE_OOO) {
struct ecore_ooo_buffer *p_buffer;
p_buffer = (struct ecore_ooo_buffer *)p_pkt->cookie;
ecore_ooo_put_free_buffer(p_hwfn->p_ooo_info, p_buffer);
} else {
p_tx->cur_completing_packet = *p_pkt;
p_tx->cur_completing_bd_idx = 1;
b_last_frag = p_tx->cur_completing_bd_idx ==
p_pkt->bd_used;
tx_frag = p_pkt->bds_set[0].tx_frag;
p_ll2_conn->cbs.tx_release_cb(p_ll2_conn->cbs.cookie,
p_ll2_conn->my_id,
p_pkt->cookie,
tx_frag,
b_last_frag,
b_last_packet);
}
OSAL_SPIN_LOCK_IRQSAVE(&p_tx->lock, flags);
}
OSAL_SPIN_UNLOCK_IRQSAVE(&p_tx->lock, flags);
}
static enum _ecore_status_t
ecore_ll2_txq_completion(struct ecore_hwfn *p_hwfn,
void *p_cookie)
{
struct ecore_ll2_info *p_ll2_conn = (struct ecore_ll2_info*)p_cookie;
struct ecore_ll2_tx_queue *p_tx = &p_ll2_conn->tx_queue;
u16 new_idx = 0, num_bds = 0, num_bds_in_packet = 0;
struct ecore_ll2_tx_packet *p_pkt;
bool b_last_frag = false;
unsigned long flags;
enum _ecore_status_t rc = ECORE_INVAL;
OSAL_SPIN_LOCK_IRQSAVE(&p_tx->lock, flags);
if (p_tx->b_completing_packet) {
/* TODO - this looks completely unnecessary to me - the only
* way we can re-enter is by the DPC calling us again, but this
* would only happen AFTER we return, and we unset this at end
* of the function.
*/
rc = ECORE_BUSY;
goto out;
}
new_idx = OSAL_LE16_TO_CPU(*p_tx->p_fw_cons);
num_bds = ((s16)new_idx - (s16)p_tx->bds_idx);
while (num_bds) {
if (OSAL_LIST_IS_EMPTY(&p_tx->active_descq))
goto out;
p_pkt = OSAL_LIST_FIRST_ENTRY(&p_tx->active_descq,
struct ecore_ll2_tx_packet,
list_entry);
if (!p_pkt)
goto out;
p_tx->b_completing_packet = true;
p_tx->cur_completing_packet = *p_pkt;
num_bds_in_packet = p_pkt->bd_used;
#if defined(_NTDDK_)
#pragma warning(suppress : 6011 28182)
#endif
OSAL_LIST_REMOVE_ENTRY(&p_pkt->list_entry,
&p_tx->active_descq);
if (num_bds < num_bds_in_packet) {
DP_NOTICE(p_hwfn, true,
"Rest of BDs does not cover whole packet\n");
goto out;
}
num_bds -= num_bds_in_packet;
p_tx->bds_idx += num_bds_in_packet;
while (num_bds_in_packet--)
ecore_chain_consume(&p_tx->txq_chain);
p_tx->cur_completing_bd_idx = 1;
b_last_frag = p_tx->cur_completing_bd_idx ==
p_pkt->bd_used;
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry,
&p_tx->free_descq);
OSAL_SPIN_UNLOCK_IRQSAVE(&p_tx->lock, flags);
p_ll2_conn->cbs.tx_comp_cb(p_ll2_conn->cbs.cookie,
p_ll2_conn->my_id,
p_pkt->cookie,
p_pkt->bds_set[0].tx_frag,
b_last_frag,
!num_bds);
OSAL_SPIN_LOCK_IRQSAVE(&p_tx->lock, flags);
}
p_tx->b_completing_packet = false;
rc = ECORE_SUCCESS;
out:
OSAL_SPIN_UNLOCK_IRQSAVE(&p_tx->lock, flags);
return rc;
}
static void ecore_ll2_rxq_parse_gsi(union core_rx_cqe_union *p_cqe,
struct ecore_ll2_comp_rx_data *data)
{
data->parse_flags =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_gsi.parse_flags.flags);
data->length.data_length =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_gsi.data_length);
data->vlan =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_gsi.vlan);
data->opaque_data_0 =
OSAL_LE32_TO_CPU(p_cqe->rx_cqe_gsi.src_mac_addrhi);
data->opaque_data_1 =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_gsi.src_mac_addrlo);
data->u.data_length_error =
p_cqe->rx_cqe_gsi.data_length_error;
data->qp_id = OSAL_LE16_TO_CPU(p_cqe->rx_cqe_gsi.qp_id);
data->src_qp = OSAL_LE32_TO_CPU(p_cqe->rx_cqe_gsi.src_qp);
}
static void ecore_ll2_rxq_parse_reg(union core_rx_cqe_union *p_cqe,
struct ecore_ll2_comp_rx_data *data)
{
data->parse_flags =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_fp.parse_flags.flags);
data->err_flags =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_fp.err_flags.flags);
data->length.packet_length =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_fp.packet_length);
data->vlan =
OSAL_LE16_TO_CPU(p_cqe->rx_cqe_fp.vlan);
data->opaque_data_0 =
OSAL_LE32_TO_CPU(p_cqe->rx_cqe_fp.opaque_data.data[0]);
data->opaque_data_1 =
OSAL_LE32_TO_CPU(p_cqe->rx_cqe_fp.opaque_data.data[1]);
data->u.placement_offset =
p_cqe->rx_cqe_fp.placement_offset;
}
#if defined(_NTDDK_)
#pragma warning(suppress : 28167 26110)
#endif
static enum _ecore_status_t
ecore_ll2_handle_slowpath(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn,
union core_rx_cqe_union *p_cqe,
unsigned long *p_lock_flags)
{
struct ecore_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue;
struct core_rx_slow_path_cqe *sp_cqe;
sp_cqe = &p_cqe->rx_cqe_sp;
if (sp_cqe->ramrod_cmd_id != CORE_RAMROD_RX_QUEUE_FLUSH) {
DP_NOTICE(p_hwfn, true,
"LL2 - unexpected Rx CQE slowpath ramrod_cmd_id:%d\n",
sp_cqe->ramrod_cmd_id);
return ECORE_INVAL;
}
if (p_ll2_conn->cbs.slowpath_cb == OSAL_NULL) {
DP_NOTICE(p_hwfn, true,
"LL2 - received RX_QUEUE_FLUSH but no callback was provided\n");
return ECORE_INVAL;
}
OSAL_SPIN_UNLOCK_IRQSAVE(&p_rx->lock, *p_lock_flags);
p_ll2_conn->cbs.slowpath_cb(p_ll2_conn->cbs.cookie,
p_ll2_conn->my_id,
OSAL_LE32_TO_CPU(sp_cqe->opaque_data.data[0]),
OSAL_LE32_TO_CPU(sp_cqe->opaque_data.data[1]));
OSAL_SPIN_LOCK_IRQSAVE(&p_rx->lock, *p_lock_flags);
return ECORE_SUCCESS;
}
static enum _ecore_status_t
ecore_ll2_rxq_handle_completion(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn,
union core_rx_cqe_union *p_cqe,
unsigned long *p_lock_flags,
bool b_last_cqe)
{
struct ecore_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue;
struct ecore_ll2_rx_packet *p_pkt = OSAL_NULL;
struct ecore_ll2_comp_rx_data data;
if (!OSAL_LIST_IS_EMPTY(&p_rx->active_descq))
p_pkt = OSAL_LIST_FIRST_ENTRY(&p_rx->active_descq,
struct ecore_ll2_rx_packet,
list_entry);
if (!p_pkt) {
DP_NOTICE(p_hwfn, false,
"[%d] LL2 Rx completion but active_descq is empty\n",
p_ll2_conn->input.conn_type);
return ECORE_IO;
}
OSAL_LIST_REMOVE_ENTRY(&p_pkt->list_entry, &p_rx->active_descq);
if (p_cqe->rx_cqe_sp.type == CORE_RX_CQE_TYPE_REGULAR)
ecore_ll2_rxq_parse_reg(p_cqe, &data);
else
ecore_ll2_rxq_parse_gsi(p_cqe, &data);
if (ecore_chain_consume(&p_rx->rxq_chain) != p_pkt->rxq_bd) {
DP_NOTICE(p_hwfn, false,
"Mismatch between active_descq and the LL2 Rx chain\n");
/* TODO - didn't return error value since this wasn't handled
* before, but this is obviously lacking.
*/
}
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry, &p_rx->free_descq);
data.connection_handle = p_ll2_conn->my_id;
data.cookie = p_pkt->cookie;
data.rx_buf_addr = p_pkt->rx_buf_addr;
data.b_last_packet = b_last_cqe;
OSAL_SPIN_UNLOCK_IRQSAVE(&p_rx->lock, *p_lock_flags);
p_ll2_conn->cbs.rx_comp_cb(p_ll2_conn->cbs.cookie,
&data);
OSAL_SPIN_LOCK_IRQSAVE(&p_rx->lock, *p_lock_flags);
return ECORE_SUCCESS;
}
static enum _ecore_status_t ecore_ll2_rxq_completion(struct ecore_hwfn *p_hwfn,
void *cookie)
{
struct ecore_ll2_info *p_ll2_conn = (struct ecore_ll2_info*)cookie;
struct ecore_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue;
union core_rx_cqe_union *cqe = OSAL_NULL;
u16 cq_new_idx = 0, cq_old_idx = 0;
unsigned long flags = 0;
enum _ecore_status_t rc = ECORE_SUCCESS;
OSAL_SPIN_LOCK_IRQSAVE(&p_rx->lock, flags);
cq_new_idx = OSAL_LE16_TO_CPU(*p_rx->p_fw_cons);
cq_old_idx = ecore_chain_get_cons_idx(&p_rx->rcq_chain);
while (cq_new_idx != cq_old_idx) {
bool b_last_cqe = (cq_new_idx == cq_old_idx);
cqe = (union core_rx_cqe_union *)ecore_chain_consume(&p_rx->rcq_chain);
cq_old_idx = ecore_chain_get_cons_idx(&p_rx->rcq_chain);
DP_VERBOSE(p_hwfn, ECORE_MSG_LL2,
"LL2 [sw. cons %04x, fw. at %04x] - Got Packet of type %02x\n",
cq_old_idx, cq_new_idx, cqe->rx_cqe_sp.type);
switch (cqe->rx_cqe_sp.type) {
case CORE_RX_CQE_TYPE_SLOW_PATH:
rc = ecore_ll2_handle_slowpath(p_hwfn, p_ll2_conn,
cqe, &flags);
break;
case CORE_RX_CQE_TYPE_GSI_OFFLOAD:
case CORE_RX_CQE_TYPE_REGULAR:
rc = ecore_ll2_rxq_handle_completion(p_hwfn, p_ll2_conn,
cqe, &flags,
b_last_cqe);
break;
default:
rc = ECORE_IO;
}
}
OSAL_SPIN_UNLOCK_IRQSAVE(&p_rx->lock, flags);
return rc;
}
static void ecore_ll2_rxq_flush(struct ecore_hwfn *p_hwfn,
u8 connection_handle)
{
struct ecore_ll2_info *p_ll2_conn = OSAL_NULL;
struct ecore_ll2_rx_packet *p_pkt = OSAL_NULL;
struct ecore_ll2_rx_queue *p_rx;
unsigned long flags = 0;
p_ll2_conn = ecore_ll2_handle_sanity_inactive(p_hwfn,
connection_handle);
if (p_ll2_conn == OSAL_NULL)
return;
p_rx = &p_ll2_conn->rx_queue;
OSAL_SPIN_LOCK_IRQSAVE(&p_rx->lock, flags);
while (!OSAL_LIST_IS_EMPTY(&p_rx->active_descq)) {
bool b_last;
p_pkt = OSAL_LIST_FIRST_ENTRY(&p_rx->active_descq,
struct ecore_ll2_rx_packet,
list_entry);
if (p_pkt == OSAL_NULL)
break;
#if defined(_NTDDK_)
#pragma warning(suppress : 6011 28182)
#endif
OSAL_LIST_REMOVE_ENTRY(&p_pkt->list_entry,
&p_rx->active_descq);
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry,
&p_rx->free_descq);
b_last = OSAL_LIST_IS_EMPTY(&p_rx->active_descq);
OSAL_SPIN_UNLOCK_IRQSAVE(&p_rx->lock, flags);
if (p_ll2_conn->input.conn_type == ECORE_LL2_TYPE_OOO) {
struct ecore_ooo_buffer *p_buffer;
p_buffer = (struct ecore_ooo_buffer *)p_pkt->cookie;
ecore_ooo_put_free_buffer(p_hwfn->p_ooo_info, p_buffer);
} else {
dma_addr_t rx_buf_addr = p_pkt->rx_buf_addr;
void *cookie = p_pkt->cookie;
p_ll2_conn->cbs.rx_release_cb(p_ll2_conn->cbs.cookie,
p_ll2_conn->my_id,
cookie,
rx_buf_addr,
b_last);
}
OSAL_SPIN_LOCK_IRQSAVE(&p_rx->lock, flags);
}
OSAL_SPIN_UNLOCK_IRQSAVE(&p_rx->lock, flags);
}
static bool
ecore_ll2_lb_rxq_handler_slowpath(struct ecore_hwfn *p_hwfn,
struct core_rx_slow_path_cqe *p_cqe)
{
struct ooo_opaque *iscsi_ooo;
u32 cid;
if (p_cqe->ramrod_cmd_id != CORE_RAMROD_RX_QUEUE_FLUSH)
return false;
iscsi_ooo = (struct ooo_opaque *)&p_cqe->opaque_data;
if (iscsi_ooo->ooo_opcode != TCP_EVENT_DELETE_ISLES)
return false;
/* Need to make a flush */
cid = OSAL_LE32_TO_CPU(iscsi_ooo->cid);
ecore_ooo_release_connection_isles(p_hwfn->p_ooo_info, cid);
return true;
}
static enum _ecore_status_t
ecore_ll2_lb_rxq_handler(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
struct ecore_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue;
u16 packet_length = 0, parse_flags = 0, vlan = 0;
struct ecore_ll2_rx_packet *p_pkt = OSAL_NULL;
u32 num_ooo_add_to_peninsula = 0, cid;
union core_rx_cqe_union *cqe = OSAL_NULL;
u16 cq_new_idx = 0, cq_old_idx = 0;
struct ecore_ooo_buffer *p_buffer;
struct ooo_opaque *iscsi_ooo;
u8 placement_offset = 0;
u8 cqe_type;
cq_new_idx = OSAL_LE16_TO_CPU(*p_rx->p_fw_cons);
cq_old_idx = ecore_chain_get_cons_idx(&p_rx->rcq_chain);
if (cq_new_idx == cq_old_idx)
return ECORE_SUCCESS;
while (cq_new_idx != cq_old_idx) {
struct core_rx_fast_path_cqe *p_cqe_fp;
cqe = (union core_rx_cqe_union *)ecore_chain_consume(&p_rx->rcq_chain);
cq_old_idx = ecore_chain_get_cons_idx(&p_rx->rcq_chain);
cqe_type = cqe->rx_cqe_sp.type;
if (cqe_type == CORE_RX_CQE_TYPE_SLOW_PATH)
if (ecore_ll2_lb_rxq_handler_slowpath(p_hwfn,
&cqe->rx_cqe_sp))
continue;
if (cqe_type != CORE_RX_CQE_TYPE_REGULAR) {
DP_NOTICE(p_hwfn, true,
"Got a non-regular LB LL2 completion [type 0x%02x]\n",
cqe_type);
return ECORE_INVAL;
}
p_cqe_fp = &cqe->rx_cqe_fp;
placement_offset = p_cqe_fp->placement_offset;
parse_flags = OSAL_LE16_TO_CPU(p_cqe_fp->parse_flags.flags);
packet_length = OSAL_LE16_TO_CPU(p_cqe_fp->packet_length);
vlan = OSAL_LE16_TO_CPU(p_cqe_fp->vlan);
iscsi_ooo = (struct ooo_opaque *)&p_cqe_fp->opaque_data;
ecore_ooo_save_history_entry(p_hwfn->p_ooo_info, iscsi_ooo);
cid = OSAL_LE32_TO_CPU(iscsi_ooo->cid);
/* Process delete isle first*/
if (iscsi_ooo->drop_size)
ecore_ooo_delete_isles(p_hwfn, p_hwfn->p_ooo_info, cid,
iscsi_ooo->drop_isle,
iscsi_ooo->drop_size);
if (iscsi_ooo->ooo_opcode == TCP_EVENT_NOP)
continue;
/* Now process create/add/join isles */
if (OSAL_LIST_IS_EMPTY(&p_rx->active_descq)) {
DP_NOTICE(p_hwfn, true,
"LL2 OOO RX chain has no submitted buffers\n");
return ECORE_IO;
}
p_pkt = OSAL_LIST_FIRST_ENTRY(&p_rx->active_descq,
struct ecore_ll2_rx_packet,
list_entry);
if ((iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_NEW_ISLE) ||
(iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_ISLE_RIGHT) ||
(iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_ISLE_LEFT) ||
(iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_PEN) ||
(iscsi_ooo->ooo_opcode == TCP_EVENT_JOIN)) {
if (!p_pkt) {
DP_NOTICE(p_hwfn, true,
"LL2 OOO RX packet is not valid\n");
return ECORE_IO;
}
#if defined(_NTDDK_)
#pragma warning(suppress : 6011 28182)
#endif
OSAL_LIST_REMOVE_ENTRY(&p_pkt->list_entry,
&p_rx->active_descq);
p_buffer = (struct ecore_ooo_buffer *)p_pkt->cookie;
p_buffer->packet_length = packet_length;
p_buffer->parse_flags = parse_flags;
p_buffer->vlan = vlan;
p_buffer->placement_offset = placement_offset;
if (ecore_chain_consume(&p_rx->rxq_chain) !=
p_pkt->rxq_bd) {
/**/
}
ecore_ooo_dump_rx_event(p_hwfn, iscsi_ooo, p_buffer);
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry,
&p_rx->free_descq);
switch (iscsi_ooo->ooo_opcode) {
case TCP_EVENT_ADD_NEW_ISLE:
ecore_ooo_add_new_isle(p_hwfn,
p_hwfn->p_ooo_info,
cid,
iscsi_ooo->ooo_isle,
p_buffer);
break;
case TCP_EVENT_ADD_ISLE_RIGHT:
ecore_ooo_add_new_buffer(p_hwfn,
p_hwfn->p_ooo_info,
cid,
iscsi_ooo->ooo_isle,
p_buffer,
ECORE_OOO_RIGHT_BUF);
break;
case TCP_EVENT_ADD_ISLE_LEFT:
ecore_ooo_add_new_buffer(p_hwfn,
p_hwfn->p_ooo_info,
cid,
iscsi_ooo->ooo_isle,
p_buffer,
ECORE_OOO_LEFT_BUF);
break;
case TCP_EVENT_JOIN:
ecore_ooo_add_new_buffer(p_hwfn,
p_hwfn->p_ooo_info,
cid,
iscsi_ooo->ooo_isle +
1,
p_buffer,
ECORE_OOO_LEFT_BUF);
ecore_ooo_join_isles(p_hwfn,
p_hwfn->p_ooo_info,
cid,
iscsi_ooo->ooo_isle);
break;
case TCP_EVENT_ADD_PEN:
num_ooo_add_to_peninsula++;
ecore_ooo_put_ready_buffer(p_hwfn->p_ooo_info,
p_buffer, true);
break;
}
} else {
DP_NOTICE(p_hwfn, true,
"Unexpected event (%d) TX OOO completion\n",
iscsi_ooo->ooo_opcode);
}
}
return ECORE_SUCCESS;
}
static void
ecore_ooo_submit_tx_buffers(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
struct ecore_ll2_tx_pkt_info tx_pkt;
struct ecore_ooo_buffer *p_buffer;
dma_addr_t first_frag;
u16 l4_hdr_offset_w;
u8 bd_flags;
enum _ecore_status_t rc;
/* Submit Tx buffers here */
while ((p_buffer = ecore_ooo_get_ready_buffer(p_hwfn->p_ooo_info))) {
l4_hdr_offset_w = 0;
bd_flags = 0;
first_frag = p_buffer->rx_buffer_phys_addr +
p_buffer->placement_offset;
SET_FIELD(bd_flags, CORE_TX_BD_DATA_FORCE_VLAN_MODE, 1);
SET_FIELD(bd_flags, CORE_TX_BD_DATA_L4_PROTOCOL, 1);
OSAL_MEM_ZERO(&tx_pkt, sizeof(tx_pkt));
tx_pkt.num_of_bds = 1;
tx_pkt.vlan = p_buffer->vlan;
tx_pkt.bd_flags = bd_flags;
tx_pkt.l4_hdr_offset_w = l4_hdr_offset_w;
tx_pkt.tx_dest = (enum ecore_ll2_tx_dest)p_ll2_conn->tx_dest;
tx_pkt.first_frag = first_frag;
tx_pkt.first_frag_len = p_buffer->packet_length;
tx_pkt.cookie = p_buffer;
rc = ecore_ll2_prepare_tx_packet(p_hwfn, p_ll2_conn->my_id,
&tx_pkt, true);
if (rc != ECORE_SUCCESS) {
ecore_ooo_put_ready_buffer(p_hwfn->p_ooo_info,
p_buffer, false);
break;
}
}
}
static void
ecore_ooo_submit_rx_buffers(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
struct ecore_ooo_buffer *p_buffer;
enum _ecore_status_t rc;
while ((p_buffer = ecore_ooo_get_free_buffer(p_hwfn->p_ooo_info))) {
rc = ecore_ll2_post_rx_buffer(p_hwfn,
p_ll2_conn->my_id,
p_buffer->rx_buffer_phys_addr,
0, p_buffer, true);
if (rc != ECORE_SUCCESS) {
ecore_ooo_put_free_buffer(p_hwfn->p_ooo_info, p_buffer);
break;
}
}
}
static enum _ecore_status_t
ecore_ll2_lb_rxq_completion(struct ecore_hwfn *p_hwfn,
void *p_cookie)
{
struct ecore_ll2_info *p_ll2_conn = (struct ecore_ll2_info *)p_cookie;
enum _ecore_status_t rc;
rc = ecore_ll2_lb_rxq_handler(p_hwfn, p_ll2_conn);
if (rc != ECORE_SUCCESS)
return rc;
ecore_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
ecore_ooo_submit_tx_buffers(p_hwfn, p_ll2_conn);
return 0;
}
static enum _ecore_status_t
ecore_ll2_lb_txq_completion(struct ecore_hwfn *p_hwfn,
void *p_cookie)
{
struct ecore_ll2_info *p_ll2_conn = (struct ecore_ll2_info *)p_cookie;
struct ecore_ll2_tx_queue *p_tx = &p_ll2_conn->tx_queue;
struct ecore_ll2_tx_packet *p_pkt = OSAL_NULL;
struct ecore_ooo_buffer *p_buffer;
bool b_dont_submit_rx = false;
u16 new_idx = 0, num_bds = 0;
enum _ecore_status_t rc;
new_idx = OSAL_LE16_TO_CPU(*p_tx->p_fw_cons);
num_bds = ((s16)new_idx - (s16)p_tx->bds_idx);
if (!num_bds)
return ECORE_SUCCESS;
while (num_bds) {
if (OSAL_LIST_IS_EMPTY(&p_tx->active_descq))
return ECORE_INVAL;
p_pkt = OSAL_LIST_FIRST_ENTRY(&p_tx->active_descq,
struct ecore_ll2_tx_packet,
list_entry);
if (!p_pkt)
return ECORE_INVAL;
if (p_pkt->bd_used != 1) {
DP_NOTICE(p_hwfn, true,
"Unexpectedly many BDs(%d) in TX OOO completion\n",
p_pkt->bd_used);
return ECORE_INVAL;
}
OSAL_LIST_REMOVE_ENTRY(&p_pkt->list_entry,
&p_tx->active_descq);
num_bds--;
p_tx->bds_idx++;
ecore_chain_consume(&p_tx->txq_chain);
p_buffer = (struct ecore_ooo_buffer *)p_pkt->cookie;
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry,
&p_tx->free_descq);
if (b_dont_submit_rx) {
ecore_ooo_put_free_buffer(p_hwfn->p_ooo_info, p_buffer);
continue;
}
rc = ecore_ll2_post_rx_buffer(p_hwfn, p_ll2_conn->my_id,
p_buffer->rx_buffer_phys_addr, 0,
p_buffer, true);
if (rc != ECORE_SUCCESS) {
ecore_ooo_put_free_buffer(p_hwfn->p_ooo_info, p_buffer);
b_dont_submit_rx = true;
}
}
ecore_ooo_submit_tx_buffers(p_hwfn, p_ll2_conn);
return ECORE_SUCCESS;
}
static enum _ecore_status_t ecore_sp_ll2_rx_queue_start(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn,
u8 action_on_error)
{
enum ecore_ll2_conn_type conn_type = p_ll2_conn->input.conn_type;
struct ecore_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue;
struct core_rx_start_ramrod_data *p_ramrod = OSAL_NULL;
struct ecore_spq_entry *p_ent = OSAL_NULL;
struct ecore_sp_init_data init_data;
u16 cqe_pbl_size;
enum _ecore_status_t rc = ECORE_SUCCESS;
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = p_ll2_conn->cid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
CORE_RAMROD_RX_QUEUE_START,
PROTOCOLID_CORE, &init_data);
if (rc != ECORE_SUCCESS)
return rc;
p_ramrod = &p_ent->ramrod.core_rx_queue_start;
p_ramrod->sb_id = OSAL_CPU_TO_LE16(ecore_int_get_sp_sb_id(p_hwfn));
p_ramrod->sb_index = p_rx->rx_sb_index;
p_ramrod->complete_event_flg = 1;
p_ramrod->mtu = OSAL_CPU_TO_LE16(p_ll2_conn->input.mtu);
DMA_REGPAIR_LE(p_ramrod->bd_base,
p_rx->rxq_chain.p_phys_addr);
cqe_pbl_size = (u16)ecore_chain_get_page_cnt(&p_rx->rcq_chain);
p_ramrod->num_of_pbl_pages = OSAL_CPU_TO_LE16(cqe_pbl_size);
DMA_REGPAIR_LE(p_ramrod->cqe_pbl_addr,
ecore_chain_get_pbl_phys(&p_rx->rcq_chain));
p_ramrod->drop_ttl0_flg = p_ll2_conn->input.rx_drop_ttl0_flg;
p_ramrod->inner_vlan_stripping_en =
p_ll2_conn->input.rx_vlan_removal_en;
if (OSAL_TEST_BIT(ECORE_MF_UFP_SPECIFIC, &p_hwfn->p_dev->mf_bits) &&
(p_ll2_conn->input.conn_type == ECORE_LL2_TYPE_FCOE))
p_ramrod->report_outer_vlan = 1;
p_ramrod->queue_id = p_ll2_conn->queue_id;
p_ramrod->main_func_queue = p_ll2_conn->main_func_queue;
if (OSAL_TEST_BIT(ECORE_MF_LL2_NON_UNICAST,
&p_hwfn->p_dev->mf_bits) &&
p_ramrod->main_func_queue &&
((conn_type != ECORE_LL2_TYPE_ROCE) &&
(conn_type != ECORE_LL2_TYPE_IWARP))) {
p_ramrod->mf_si_bcast_accept_all = 1;
p_ramrod->mf_si_mcast_accept_all = 1;
} else {
p_ramrod->mf_si_bcast_accept_all = 0;
p_ramrod->mf_si_mcast_accept_all = 0;
}
p_ramrod->action_on_error.error_type = action_on_error;
p_ramrod->gsi_offload_flag = p_ll2_conn->input.gsi_enable;
return ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
}
static enum _ecore_status_t ecore_sp_ll2_tx_queue_start(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
enum ecore_ll2_conn_type conn_type = p_ll2_conn->input.conn_type;
struct ecore_ll2_tx_queue *p_tx = &p_ll2_conn->tx_queue;
struct core_tx_start_ramrod_data *p_ramrod = OSAL_NULL;
struct ecore_spq_entry *p_ent = OSAL_NULL;
struct ecore_sp_init_data init_data;
u16 pq_id = 0, pbl_size;
enum _ecore_status_t rc = ECORE_NOTIMPL;
if (!ECORE_LL2_TX_REGISTERED(p_ll2_conn))
return ECORE_SUCCESS;
if (p_ll2_conn->input.conn_type == ECORE_LL2_TYPE_OOO)
p_ll2_conn->tx_stats_en = 0;
else
p_ll2_conn->tx_stats_en = 1;
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = p_ll2_conn->cid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
CORE_RAMROD_TX_QUEUE_START,
PROTOCOLID_CORE, &init_data);
if (rc != ECORE_SUCCESS)
return rc;
p_ramrod = &p_ent->ramrod.core_tx_queue_start;
p_ramrod->sb_id = OSAL_CPU_TO_LE16(ecore_int_get_sp_sb_id(p_hwfn));
p_ramrod->sb_index = p_tx->tx_sb_index;
p_ramrod->mtu = OSAL_CPU_TO_LE16(p_ll2_conn->input.mtu);
p_ramrod->stats_en = p_ll2_conn->tx_stats_en;
p_ramrod->stats_id = p_ll2_conn->tx_stats_id;
DMA_REGPAIR_LE(p_ramrod->pbl_base_addr,
ecore_chain_get_pbl_phys(&p_tx->txq_chain));
pbl_size = (u16)ecore_chain_get_page_cnt(&p_tx->txq_chain);
p_ramrod->pbl_size = OSAL_CPU_TO_LE16(pbl_size);
/* TODO RESC_ALLOC pq for ll2 */
switch (p_ll2_conn->input.tx_tc) {
case PURE_LB_TC:
pq_id = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LB);
break;
case PKT_LB_TC:
pq_id = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OOO);
break;
default:
pq_id = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
}
p_ramrod->qm_pq_id = OSAL_CPU_TO_LE16(pq_id);
switch (conn_type) {
case ECORE_LL2_TYPE_FCOE:
p_ramrod->conn_type = PROTOCOLID_FCOE;
break;
case ECORE_LL2_TYPE_ISCSI:
p_ramrod->conn_type = PROTOCOLID_ISCSI;
break;
case ECORE_LL2_TYPE_ROCE:
p_ramrod->conn_type = PROTOCOLID_ROCE;
break;
case ECORE_LL2_TYPE_IWARP:
p_ramrod->conn_type = PROTOCOLID_IWARP;
break;
case ECORE_LL2_TYPE_OOO:
if (p_hwfn->hw_info.personality == ECORE_PCI_ISCSI) {
p_ramrod->conn_type = PROTOCOLID_ISCSI;
} else {
p_ramrod->conn_type = PROTOCOLID_IWARP;
}
break;
default:
p_ramrod->conn_type = PROTOCOLID_ETH;
DP_NOTICE(p_hwfn, false, "Unknown connection type: %d\n",
conn_type);
}
p_ramrod->gsi_offload_flag = p_ll2_conn->input.gsi_enable;
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
if (rc != ECORE_SUCCESS)
return rc;
rc = ecore_db_recovery_add(p_hwfn->p_dev, p_tx->doorbell_addr,
&p_tx->db_msg, DB_REC_WIDTH_32B,
DB_REC_KERNEL);
return rc;
}
static enum _ecore_status_t ecore_sp_ll2_rx_queue_stop(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
struct core_rx_stop_ramrod_data *p_ramrod = OSAL_NULL;
struct ecore_spq_entry *p_ent = OSAL_NULL;
struct ecore_sp_init_data init_data;
enum _ecore_status_t rc = ECORE_NOTIMPL;
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = p_ll2_conn->cid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
CORE_RAMROD_RX_QUEUE_STOP,
PROTOCOLID_CORE, &init_data);
if (rc != ECORE_SUCCESS)
return rc;
p_ramrod = &p_ent->ramrod.core_rx_queue_stop;
p_ramrod->complete_event_flg = 1;
p_ramrod->queue_id = p_ll2_conn->queue_id;
return ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
}
static enum _ecore_status_t ecore_sp_ll2_tx_queue_stop(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
struct ecore_ll2_tx_queue *p_tx = &p_ll2_conn->tx_queue;
struct ecore_spq_entry *p_ent = OSAL_NULL;
struct ecore_sp_init_data init_data;
enum _ecore_status_t rc = ECORE_NOTIMPL;
ecore_db_recovery_del(p_hwfn->p_dev, p_tx->doorbell_addr,
&p_tx->db_msg);
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = p_ll2_conn->cid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
CORE_RAMROD_TX_QUEUE_STOP,
PROTOCOLID_CORE, &init_data);
if (rc != ECORE_SUCCESS)
return rc;
return ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
}
static enum _ecore_status_t
ecore_ll2_acquire_connection_rx(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_info)
{
struct ecore_ll2_rx_packet *p_descq;
u32 capacity;
enum _ecore_status_t rc = ECORE_SUCCESS;
if (!p_ll2_info->input.rx_num_desc)
goto out;
rc = ecore_chain_alloc(p_hwfn->p_dev,
ECORE_CHAIN_USE_TO_CONSUME_PRODUCE,
ECORE_CHAIN_MODE_NEXT_PTR,
ECORE_CHAIN_CNT_TYPE_U16,
p_ll2_info->input.rx_num_desc,
sizeof(struct core_rx_bd),
&p_ll2_info->rx_queue.rxq_chain, OSAL_NULL);
if (rc) {
DP_NOTICE(p_hwfn, false,
"Failed to allocate ll2 rxq chain\n");
goto out;
}
capacity = ecore_chain_get_capacity(&p_ll2_info->rx_queue.rxq_chain);
p_descq = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
capacity * sizeof(struct ecore_ll2_rx_packet));
if (!p_descq) {
rc = ECORE_NOMEM;
DP_NOTICE(p_hwfn, false,
"Failed to allocate ll2 Rx desc\n");
goto out;
}
p_ll2_info->rx_queue.descq_array = p_descq;
rc = ecore_chain_alloc(p_hwfn->p_dev,
ECORE_CHAIN_USE_TO_CONSUME_PRODUCE,
ECORE_CHAIN_MODE_PBL,
ECORE_CHAIN_CNT_TYPE_U16,
p_ll2_info->input.rx_num_desc,
sizeof(struct core_rx_fast_path_cqe),
&p_ll2_info->rx_queue.rcq_chain, OSAL_NULL);
if (rc != ECORE_SUCCESS) {
DP_NOTICE(p_hwfn, false,
"Failed to allocate ll2 rcq chain\n");
goto out;
}
DP_VERBOSE(p_hwfn, ECORE_MSG_LL2,
"Allocated LL2 Rxq [Type %08x] with 0x%08x buffers\n",
p_ll2_info->input.conn_type,
p_ll2_info->input.rx_num_desc);
out:
return rc;
}
static enum _ecore_status_t
ecore_ll2_acquire_connection_tx(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_info)
{
struct ecore_ll2_tx_packet *p_descq;
u32 capacity;
enum _ecore_status_t rc = ECORE_SUCCESS;
u32 desc_size;
if (!p_ll2_info->input.tx_num_desc)
goto out;
rc = ecore_chain_alloc(p_hwfn->p_dev,
ECORE_CHAIN_USE_TO_CONSUME_PRODUCE,
ECORE_CHAIN_MODE_PBL,
ECORE_CHAIN_CNT_TYPE_U16,
p_ll2_info->input.tx_num_desc,
sizeof(struct core_tx_bd),
&p_ll2_info->tx_queue.txq_chain, OSAL_NULL);
if (rc != ECORE_SUCCESS)
goto out;
capacity = ecore_chain_get_capacity(&p_ll2_info->tx_queue.txq_chain);
desc_size = (sizeof(*p_descq) +
(p_ll2_info->input.tx_max_bds_per_packet - 1) *
sizeof(p_descq->bds_set));
p_descq = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
capacity * desc_size);
if (!p_descq) {
rc = ECORE_NOMEM;
goto out;
}
p_ll2_info->tx_queue.descq_array = p_descq;
DP_VERBOSE(p_hwfn, ECORE_MSG_LL2,
"Allocated LL2 Txq [Type %08x] with 0x%08x buffers\n",
p_ll2_info->input.conn_type,
p_ll2_info->input.tx_num_desc);
out:
if (rc != ECORE_SUCCESS)
DP_NOTICE(p_hwfn, false,
"Can't allocate memory for Tx LL2 with 0x%08x buffers\n",
p_ll2_info->input.tx_num_desc);
return rc;
}
static enum _ecore_status_t
ecore_ll2_acquire_connection_ooo(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_info, u16 mtu)
{
struct ecore_ooo_buffer *p_buf = OSAL_NULL;
u32 rx_buffer_size = 0;
void *p_virt;
u16 buf_idx;
enum _ecore_status_t rc = ECORE_SUCCESS;
if (p_ll2_info->input.conn_type != ECORE_LL2_TYPE_OOO)
return rc;
/* Correct number of requested OOO buffers if needed */
if (!p_ll2_info->input.rx_num_ooo_buffers) {
u16 num_desc = p_ll2_info->input.rx_num_desc;
if (!num_desc)
return ECORE_INVAL;
p_ll2_info->input.rx_num_ooo_buffers = num_desc * 2;
}
/* TODO - use some defines for buffer size */
rx_buffer_size = mtu + 14 + 4 + 8 + ETH_CACHE_LINE_SIZE;
rx_buffer_size = (rx_buffer_size + ETH_CACHE_LINE_SIZE - 1) &
~(ETH_CACHE_LINE_SIZE - 1);
for (buf_idx = 0; buf_idx < p_ll2_info->input.rx_num_ooo_buffers;
buf_idx++) {
p_buf = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*p_buf));
if (!p_buf) {
DP_NOTICE(p_hwfn, false,
"Failed to allocate ooo descriptor\n");
rc = ECORE_NOMEM;
goto out;
}
p_buf->rx_buffer_size = rx_buffer_size;
p_virt = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev,
&p_buf->rx_buffer_phys_addr,
p_buf->rx_buffer_size);
if (!p_virt) {
DP_NOTICE(p_hwfn, false,
"Failed to allocate ooo buffer\n");
OSAL_FREE(p_hwfn->p_dev, p_buf);
rc = ECORE_NOMEM;
goto out;
}
p_buf->rx_buffer_virt_addr = p_virt;
ecore_ooo_put_free_buffer(p_hwfn->p_ooo_info, p_buf);
}
DP_VERBOSE(p_hwfn, ECORE_MSG_LL2,
"Allocated [%04x] LL2 OOO buffers [each of size 0x%08x]\n",
p_ll2_info->input.rx_num_ooo_buffers, rx_buffer_size);
out:
return rc;
}
static enum _ecore_status_t
ecore_ll2_set_cbs(struct ecore_ll2_info *p_ll2_info,
const struct ecore_ll2_cbs *cbs)
{
if (!cbs || (!cbs->rx_comp_cb ||
!cbs->rx_release_cb ||
!cbs->tx_comp_cb ||
!cbs->tx_release_cb ||
!cbs->cookie))
return ECORE_INVAL;
p_ll2_info->cbs.rx_comp_cb = cbs->rx_comp_cb;
p_ll2_info->cbs.rx_release_cb = cbs->rx_release_cb;
p_ll2_info->cbs.tx_comp_cb = cbs->tx_comp_cb;
p_ll2_info->cbs.tx_release_cb = cbs->tx_release_cb;
p_ll2_info->cbs.slowpath_cb = cbs->slowpath_cb;
p_ll2_info->cbs.cookie = cbs->cookie;
return ECORE_SUCCESS;
}
static enum core_error_handle
ecore_ll2_get_error_choice(enum ecore_ll2_error_handle err)
{
switch (err) {
case ECORE_LL2_DROP_PACKET:
return LL2_DROP_PACKET;
case ECORE_LL2_DO_NOTHING:
return LL2_DO_NOTHING;
case ECORE_LL2_ASSERT:
return LL2_ASSERT;
default:
return LL2_DO_NOTHING;
}
}
enum _ecore_status_t
ecore_ll2_acquire_connection(void *cxt,
struct ecore_ll2_acquire_data *data)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
ecore_int_comp_cb_t comp_rx_cb, comp_tx_cb;
struct ecore_ll2_info *p_ll2_info = OSAL_NULL;
enum _ecore_status_t rc;
u8 i, *p_tx_max;
if (!data->p_connection_handle || !p_hwfn->p_ll2_info) {
DP_NOTICE(p_hwfn, false, "Invalid connection handle, ll2_info not allocated\n");
return ECORE_INVAL;
}
/* Find a free connection to be used */
for (i = 0; (i < ECORE_MAX_NUM_OF_LL2_CONNECTIONS); i++) {
OSAL_MUTEX_ACQUIRE(&p_hwfn->p_ll2_info[i].mutex);
if (p_hwfn->p_ll2_info[i].b_active) {
OSAL_MUTEX_RELEASE(&p_hwfn->p_ll2_info[i].mutex);
continue;
}
p_hwfn->p_ll2_info[i].b_active = true;
p_ll2_info = &p_hwfn->p_ll2_info[i];
OSAL_MUTEX_RELEASE(&p_hwfn->p_ll2_info[i].mutex);
break;
}
if (p_ll2_info == OSAL_NULL) {
DP_NOTICE(p_hwfn, false, "No available ll2 connection\n");
return ECORE_BUSY;
}
OSAL_MEMCPY(&p_ll2_info->input, &data->input,
sizeof(p_ll2_info->input));
switch (data->input.tx_dest) {
case ECORE_LL2_TX_DEST_NW:
p_ll2_info->tx_dest = CORE_TX_DEST_NW;
break;
case ECORE_LL2_TX_DEST_LB:
p_ll2_info->tx_dest = CORE_TX_DEST_LB;
break;
case ECORE_LL2_TX_DEST_DROP:
p_ll2_info->tx_dest = CORE_TX_DEST_DROP;
break;
default:
return ECORE_INVAL;
}
if ((data->input.conn_type == ECORE_LL2_TYPE_OOO) ||
data->input.secondary_queue)
p_ll2_info->main_func_queue = false;
else
p_ll2_info->main_func_queue = true;
/* Correct maximum number of Tx BDs */
p_tx_max = &p_ll2_info->input.tx_max_bds_per_packet;
if (*p_tx_max == 0)
*p_tx_max = CORE_LL2_TX_MAX_BDS_PER_PACKET;
else
*p_tx_max = OSAL_MIN_T(u8, *p_tx_max,
CORE_LL2_TX_MAX_BDS_PER_PACKET);
rc = ecore_ll2_set_cbs(p_ll2_info, data->cbs);
if (rc) {
DP_NOTICE(p_hwfn, false, "Invalid callback functions\n");
goto q_allocate_fail;
}
rc = ecore_ll2_acquire_connection_rx(p_hwfn, p_ll2_info);
if (rc != ECORE_SUCCESS) {
DP_NOTICE(p_hwfn, false, "ll2 acquire rx connection failed\n");
goto q_allocate_fail;
}
rc = ecore_ll2_acquire_connection_tx(p_hwfn, p_ll2_info);
if (rc != ECORE_SUCCESS) {
DP_NOTICE(p_hwfn, false, "ll2 acquire tx connection failed\n");
goto q_allocate_fail;
}
rc = ecore_ll2_acquire_connection_ooo(p_hwfn, p_ll2_info,
data->input.mtu);
if (rc != ECORE_SUCCESS) {
DP_NOTICE(p_hwfn, false, "ll2 acquire ooo connection failed\n");
goto q_allocate_fail;
}
/* Register callbacks for the Rx/Tx queues */
if (data->input.conn_type == ECORE_LL2_TYPE_OOO) {
comp_rx_cb = ecore_ll2_lb_rxq_completion;
comp_tx_cb = ecore_ll2_lb_txq_completion;
} else {
comp_rx_cb = ecore_ll2_rxq_completion;
comp_tx_cb = ecore_ll2_txq_completion;
}
if (data->input.rx_num_desc) {
ecore_int_register_cb(p_hwfn, comp_rx_cb,
&p_hwfn->p_ll2_info[i],
&p_ll2_info->rx_queue.rx_sb_index,
&p_ll2_info->rx_queue.p_fw_cons);
p_ll2_info->rx_queue.b_cb_registred = true;
}
if (data->input.tx_num_desc) {
ecore_int_register_cb(p_hwfn,
comp_tx_cb,
&p_hwfn->p_ll2_info[i],
&p_ll2_info->tx_queue.tx_sb_index,
&p_ll2_info->tx_queue.p_fw_cons);
p_ll2_info->tx_queue.b_cb_registred = true;
}
*(data->p_connection_handle) = i;
return rc;
q_allocate_fail:
ecore_ll2_release_connection(p_hwfn, i);
return ECORE_NOMEM;
}
static enum _ecore_status_t ecore_ll2_establish_connection_rx(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
enum ecore_ll2_error_handle error_input;
enum core_error_handle error_mode;
u8 action_on_error = 0;
if (!ECORE_LL2_RX_REGISTERED(p_ll2_conn))
return ECORE_SUCCESS;
DIRECT_REG_WR(p_hwfn, p_ll2_conn->rx_queue.set_prod_addr, 0x0);
error_input = p_ll2_conn->input.ai_err_packet_too_big;
error_mode = ecore_ll2_get_error_choice(error_input);
SET_FIELD(action_on_error,
CORE_RX_ACTION_ON_ERROR_PACKET_TOO_BIG, error_mode);
error_input = p_ll2_conn->input.ai_err_no_buf;
error_mode = ecore_ll2_get_error_choice(error_input);
SET_FIELD(action_on_error,
CORE_RX_ACTION_ON_ERROR_NO_BUFF, error_mode);
return ecore_sp_ll2_rx_queue_start(p_hwfn, p_ll2_conn, action_on_error);
}
static void
ecore_ll2_establish_connection_ooo(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
if (p_ll2_conn->input.conn_type != ECORE_LL2_TYPE_OOO)
return;
ecore_ooo_release_all_isles(p_hwfn->p_ooo_info);
ecore_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
}
enum _ecore_status_t ecore_ll2_establish_connection(void *cxt,
u8 connection_handle)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
struct e4_core_conn_context *p_cxt;
struct ecore_ll2_info *p_ll2_conn;
struct ecore_cxt_info cxt_info;
struct ecore_ll2_rx_queue *p_rx;
struct ecore_ll2_tx_queue *p_tx;
struct ecore_ll2_tx_packet *p_pkt;
struct ecore_ptt *p_ptt;
enum _ecore_status_t rc = ECORE_NOTIMPL;
u32 i, capacity;
u32 desc_size;
u8 qid;
p_ptt = ecore_ptt_acquire(p_hwfn);
if (!p_ptt)
return ECORE_AGAIN;
p_ll2_conn = ecore_ll2_handle_sanity_lock(p_hwfn, connection_handle);
if (p_ll2_conn == OSAL_NULL) {
rc = ECORE_INVAL;
goto out;
}
p_rx = &p_ll2_conn->rx_queue;
p_tx = &p_ll2_conn->tx_queue;
ecore_chain_reset(&p_rx->rxq_chain);
ecore_chain_reset(&p_rx->rcq_chain);
OSAL_LIST_INIT(&p_rx->active_descq);
OSAL_LIST_INIT(&p_rx->free_descq);
OSAL_LIST_INIT(&p_rx->posting_descq);
OSAL_SPIN_LOCK_INIT(&p_rx->lock);
capacity = ecore_chain_get_capacity(&p_rx->rxq_chain);
for (i = 0; i < capacity; i++)
OSAL_LIST_PUSH_TAIL(&p_rx->descq_array[i].list_entry,
&p_rx->free_descq);
*p_rx->p_fw_cons = 0;
ecore_chain_reset(&p_tx->txq_chain);
OSAL_LIST_INIT(&p_tx->active_descq);
OSAL_LIST_INIT(&p_tx->free_descq);
OSAL_LIST_INIT(&p_tx->sending_descq);
OSAL_SPIN_LOCK_INIT(&p_tx->lock);
capacity = ecore_chain_get_capacity(&p_tx->txq_chain);
/* The size of the element in descq_array is flexible */
desc_size = (sizeof(*p_pkt) +
(p_ll2_conn->input.tx_max_bds_per_packet - 1) *
sizeof(p_pkt->bds_set));
for (i = 0; i < capacity; i++) {
p_pkt = (struct ecore_ll2_tx_packet *)((u8 *)p_tx->descq_array +
desc_size*i);
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry,
&p_tx->free_descq);
}
p_tx->cur_completing_bd_idx = 0;
p_tx->bds_idx = 0;
p_tx->b_completing_packet = false;
p_tx->cur_send_packet = OSAL_NULL;
p_tx->cur_send_frag_num = 0;
p_tx->cur_completing_frag_num = 0;
*p_tx->p_fw_cons = 0;
rc = ecore_cxt_acquire_cid(p_hwfn, PROTOCOLID_CORE, &p_ll2_conn->cid);
if (rc)
goto out;
cxt_info.iid = p_ll2_conn->cid;
rc = ecore_cxt_get_cid_info(p_hwfn, &cxt_info);
if (rc) {
DP_NOTICE(p_hwfn, true, "Cannot find context info for cid=%d\n",
p_ll2_conn->cid);
goto out;
}
p_cxt = cxt_info.p_cxt;
/* @@@TBD we zero the context until we have ilt_reset implemented. */
OSAL_MEM_ZERO(p_cxt, sizeof(*p_cxt));
qid = ecore_ll2_handle_to_queue_id(p_hwfn, connection_handle);
p_ll2_conn->queue_id = qid;
p_ll2_conn->tx_stats_id = qid;
p_rx->set_prod_addr = (u8 OSAL_IOMEM*)p_hwfn->regview +
GTT_BAR0_MAP_REG_TSDM_RAM +
TSTORM_LL2_RX_PRODS_OFFSET(qid);
p_tx->doorbell_addr = (u8 OSAL_IOMEM*)p_hwfn->doorbells +
DB_ADDR(p_ll2_conn->cid,
DQ_DEMS_LEGACY);
/* prepare db data */
SET_FIELD(p_tx->db_msg.params, CORE_DB_DATA_DEST, DB_DEST_XCM);
SET_FIELD(p_tx->db_msg.params, CORE_DB_DATA_AGG_CMD,
DB_AGG_CMD_SET);
SET_FIELD(p_tx->db_msg.params, CORE_DB_DATA_AGG_VAL_SEL,
DQ_XCM_CORE_TX_BD_PROD_CMD);
p_tx->db_msg.agg_flags = DQ_XCM_CORE_DQ_CF_CMD;
rc = ecore_ll2_establish_connection_rx(p_hwfn, p_ll2_conn);
if (rc)
goto out;
rc = ecore_sp_ll2_tx_queue_start(p_hwfn, p_ll2_conn);
if (rc)
goto out;
if (!ECORE_IS_RDMA_PERSONALITY(p_hwfn))
ecore_wr(p_hwfn, p_ptt, PRS_REG_USE_LIGHT_L2, 1);
ecore_ll2_establish_connection_ooo(p_hwfn, p_ll2_conn);
if (p_ll2_conn->input.conn_type == ECORE_LL2_TYPE_FCOE) {
if (!OSAL_TEST_BIT(ECORE_MF_UFP_SPECIFIC,
&p_hwfn->p_dev->mf_bits))
ecore_llh_add_protocol_filter(p_hwfn->p_dev, 0,
ECORE_LLH_FILTER_ETHERTYPE,
0x8906, 0);
ecore_llh_add_protocol_filter(p_hwfn->p_dev, 0,
ECORE_LLH_FILTER_ETHERTYPE,
0x8914, 0);
}
out:
ecore_ptt_release(p_hwfn, p_ptt);
return rc;
}
static void ecore_ll2_post_rx_buffer_notify_fw(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_rx_queue *p_rx,
struct ecore_ll2_rx_packet *p_curp)
{
struct ecore_ll2_rx_packet *p_posting_packet = OSAL_NULL;
struct core_ll2_rx_prod rx_prod = {0, 0, 0};
bool b_notify_fw = false;
u16 bd_prod, cq_prod;
/* This handles the flushing of already posted buffers */
while (!OSAL_LIST_IS_EMPTY(&p_rx->posting_descq)) {
p_posting_packet = OSAL_LIST_FIRST_ENTRY(&p_rx->posting_descq,
struct ecore_ll2_rx_packet,
list_entry);
#if defined(_NTDDK_)
#pragma warning(suppress : 6011 28182)
#endif
OSAL_LIST_REMOVE_ENTRY(&p_posting_packet->list_entry, &p_rx->posting_descq);
OSAL_LIST_PUSH_TAIL(&p_posting_packet->list_entry, &p_rx->active_descq);
b_notify_fw = true;
}
/* This handles the supplied packet [if there is one] */
if (p_curp) {
OSAL_LIST_PUSH_TAIL(&p_curp->list_entry,
&p_rx->active_descq);
b_notify_fw = true;
}
if (!b_notify_fw)
return;
bd_prod = ecore_chain_get_prod_idx(&p_rx->rxq_chain);
cq_prod = ecore_chain_get_prod_idx(&p_rx->rcq_chain);
rx_prod.bd_prod = OSAL_CPU_TO_LE16(bd_prod);
rx_prod.cqe_prod = OSAL_CPU_TO_LE16(cq_prod);
DIRECT_REG_WR(p_hwfn, p_rx->set_prod_addr, *((u32 *)&rx_prod));
}
enum _ecore_status_t ecore_ll2_post_rx_buffer(void *cxt,
u8 connection_handle,
dma_addr_t addr,
u16 buf_len,
void *cookie,
u8 notify_fw)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
struct core_rx_bd_with_buff_len *p_curb = OSAL_NULL;
struct ecore_ll2_rx_packet *p_curp = OSAL_NULL;
struct ecore_ll2_info *p_ll2_conn;
struct ecore_ll2_rx_queue *p_rx;
unsigned long flags;
void *p_data;
enum _ecore_status_t rc = ECORE_SUCCESS;
p_ll2_conn = ecore_ll2_handle_sanity(p_hwfn, connection_handle);
if (p_ll2_conn == OSAL_NULL)
return ECORE_INVAL;
p_rx = &p_ll2_conn->rx_queue;
if (p_rx->set_prod_addr == OSAL_NULL)
return ECORE_IO;
OSAL_SPIN_LOCK_IRQSAVE(&p_rx->lock, flags);
if (!OSAL_LIST_IS_EMPTY(&p_rx->free_descq))
p_curp = OSAL_LIST_FIRST_ENTRY(&p_rx->free_descq,
struct ecore_ll2_rx_packet,
list_entry);
if (p_curp) {
if (ecore_chain_get_elem_left(&p_rx->rxq_chain) &&
ecore_chain_get_elem_left(&p_rx->rcq_chain)) {
p_data = ecore_chain_produce(&p_rx->rxq_chain);
p_curb = (struct core_rx_bd_with_buff_len *)p_data;
ecore_chain_produce(&p_rx->rcq_chain);
}
}
/* If we're lacking entires, let's try to flush buffers to FW */
if (!p_curp || !p_curb) {
rc = ECORE_BUSY;
p_curp = OSAL_NULL;
goto out_notify;
}
/* We have an Rx packet we can fill */
DMA_REGPAIR_LE(p_curb->addr, addr);
p_curb->buff_length = OSAL_CPU_TO_LE16(buf_len);
p_curp->rx_buf_addr = addr;
p_curp->cookie = cookie;
p_curp->rxq_bd = p_curb;
p_curp->buf_length = buf_len;
OSAL_LIST_REMOVE_ENTRY(&p_curp->list_entry,
&p_rx->free_descq);
/* Check if we only want to enqueue this packet without informing FW */
if (!notify_fw) {
OSAL_LIST_PUSH_TAIL(&p_curp->list_entry,
&p_rx->posting_descq);
goto out;
}
out_notify:
ecore_ll2_post_rx_buffer_notify_fw(p_hwfn, p_rx, p_curp);
out:
OSAL_SPIN_UNLOCK_IRQSAVE(&p_rx->lock, flags);
return rc;
}
static void ecore_ll2_prepare_tx_packet_set(struct ecore_ll2_tx_queue *p_tx,
struct ecore_ll2_tx_packet *p_curp,
struct ecore_ll2_tx_pkt_info *pkt,
u8 notify_fw)
{
OSAL_LIST_REMOVE_ENTRY(&p_curp->list_entry,
&p_tx->free_descq);
p_curp->cookie = pkt->cookie;
p_curp->bd_used = pkt->num_of_bds;
p_curp->notify_fw = notify_fw;
p_tx->cur_send_packet = p_curp;
p_tx->cur_send_frag_num = 0;
p_curp->bds_set[p_tx->cur_send_frag_num].tx_frag = pkt->first_frag;
p_curp->bds_set[p_tx->cur_send_frag_num].frag_len = pkt->first_frag_len;
p_tx->cur_send_frag_num++;
}
static void ecore_ll2_prepare_tx_packet_set_bd(
struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2,
struct ecore_ll2_tx_packet *p_curp,
struct ecore_ll2_tx_pkt_info *pkt)
{
struct ecore_chain *p_tx_chain = &p_ll2->tx_queue.txq_chain;
u16 prod_idx = ecore_chain_get_prod_idx(p_tx_chain);
struct core_tx_bd *start_bd = OSAL_NULL;
enum core_roce_flavor_type roce_flavor;
enum core_tx_dest tx_dest;
u16 bd_data = 0, frag_idx;
roce_flavor = (pkt->ecore_roce_flavor == ECORE_LL2_ROCE) ?
CORE_ROCE : CORE_RROCE;
switch (pkt->tx_dest) {
case ECORE_LL2_TX_DEST_NW:
tx_dest = CORE_TX_DEST_NW;
break;
case ECORE_LL2_TX_DEST_LB:
tx_dest = CORE_TX_DEST_LB;
break;
case ECORE_LL2_TX_DEST_DROP:
tx_dest = CORE_TX_DEST_DROP;
break;
default:
tx_dest = CORE_TX_DEST_LB;
break;
}
start_bd = (struct core_tx_bd*)ecore_chain_produce(p_tx_chain);
if (ECORE_IS_IWARP_PERSONALITY(p_hwfn) &&
(p_ll2->input.conn_type == ECORE_LL2_TYPE_OOO)) {
start_bd->nw_vlan_or_lb_echo =
OSAL_CPU_TO_LE16(IWARP_LL2_IN_ORDER_TX_QUEUE);
} else {
start_bd->nw_vlan_or_lb_echo = OSAL_CPU_TO_LE16(pkt->vlan);
if (OSAL_TEST_BIT(ECORE_MF_UFP_SPECIFIC, &p_hwfn->p_dev->mf_bits) &&
(p_ll2->input.conn_type == ECORE_LL2_TYPE_FCOE))
pkt->remove_stag = true;
}
SET_FIELD(start_bd->bitfield1, CORE_TX_BD_L4_HDR_OFFSET_W,
OSAL_CPU_TO_LE16(pkt->l4_hdr_offset_w));
SET_FIELD(start_bd->bitfield1, CORE_TX_BD_TX_DST, tx_dest);
bd_data |= pkt->bd_flags;
SET_FIELD(bd_data, CORE_TX_BD_DATA_START_BD, 0x1);
SET_FIELD(bd_data, CORE_TX_BD_DATA_NBDS, pkt->num_of_bds);
SET_FIELD(bd_data, CORE_TX_BD_DATA_ROCE_FLAV, roce_flavor);
SET_FIELD(bd_data, CORE_TX_BD_DATA_IP_CSUM, !!(pkt->enable_ip_cksum));
SET_FIELD(bd_data, CORE_TX_BD_DATA_L4_CSUM, !!(pkt->enable_l4_cksum));
SET_FIELD(bd_data, CORE_TX_BD_DATA_IP_LEN, !!(pkt->calc_ip_len));
SET_FIELD(bd_data, CORE_TX_BD_DATA_DISABLE_STAG_INSERTION,
!!(pkt->remove_stag));
start_bd->bd_data.as_bitfield = OSAL_CPU_TO_LE16(bd_data);
DMA_REGPAIR_LE(start_bd->addr, pkt->first_frag);
start_bd->nbytes = OSAL_CPU_TO_LE16(pkt->first_frag_len);
DP_VERBOSE(p_hwfn, (ECORE_MSG_TX_QUEUED | ECORE_MSG_LL2),
"LL2 [q 0x%02x cid 0x%08x type 0x%08x] Tx Producer at [0x%04x] - set with a %04x bytes %02x BDs buffer at %08x:%08x\n",
p_ll2->queue_id, p_ll2->cid, p_ll2->input.conn_type,
prod_idx, pkt->first_frag_len, pkt->num_of_bds,
OSAL_LE32_TO_CPU(start_bd->addr.hi),
OSAL_LE32_TO_CPU(start_bd->addr.lo));
if (p_ll2->tx_queue.cur_send_frag_num == pkt->num_of_bds)
return;
/* Need to provide the packet with additional BDs for frags */
for (frag_idx = p_ll2->tx_queue.cur_send_frag_num;
frag_idx < pkt->num_of_bds; frag_idx++) {
struct core_tx_bd **p_bd = &p_curp->bds_set[frag_idx].txq_bd;
*p_bd = (struct core_tx_bd *)ecore_chain_produce(p_tx_chain);
(*p_bd)->bd_data.as_bitfield = 0;
(*p_bd)->bitfield1 = 0;
p_curp->bds_set[frag_idx].tx_frag = 0;
p_curp->bds_set[frag_idx].frag_len = 0;
}
}
/* This should be called while the Txq spinlock is being held */
static void ecore_ll2_tx_packet_notify(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
bool b_notify = p_ll2_conn->tx_queue.cur_send_packet->notify_fw;
struct ecore_ll2_tx_queue *p_tx = &p_ll2_conn->tx_queue;
struct ecore_ll2_tx_packet *p_pkt = OSAL_NULL;
u16 bd_prod;
/* If there are missing BDs, don't do anything now */
if (p_ll2_conn->tx_queue.cur_send_frag_num !=
p_ll2_conn->tx_queue.cur_send_packet->bd_used)
return;
/* Push the current packet to the list and clean after it */
OSAL_LIST_PUSH_TAIL(&p_ll2_conn->tx_queue.cur_send_packet->list_entry,
&p_ll2_conn->tx_queue.sending_descq);
p_ll2_conn->tx_queue.cur_send_packet = OSAL_NULL;
p_ll2_conn->tx_queue.cur_send_frag_num = 0;
/* Notify FW of packet only if requested to */
if (!b_notify)
return;
bd_prod = ecore_chain_get_prod_idx(&p_ll2_conn->tx_queue.txq_chain);
while (!OSAL_LIST_IS_EMPTY(&p_tx->sending_descq)) {
p_pkt = OSAL_LIST_FIRST_ENTRY(&p_tx->sending_descq,
struct ecore_ll2_tx_packet,
list_entry);
if (p_pkt == OSAL_NULL)
break;
#if defined(_NTDDK_)
#pragma warning(suppress : 6011 28182)
#endif
OSAL_LIST_REMOVE_ENTRY(&p_pkt->list_entry,
&p_tx->sending_descq);
OSAL_LIST_PUSH_TAIL(&p_pkt->list_entry, &p_tx->active_descq);
}
p_tx->db_msg.spq_prod = OSAL_CPU_TO_LE16(bd_prod);
/* Make sure the BDs data is updated before ringing the doorbell */
OSAL_WMB(p_hwfn->p_dev);
//DIRECT_REG_WR(p_hwfn, p_tx->doorbell_addr, *((u32 *)&p_tx->db_msg));
DIRECT_REG_WR_DB(p_hwfn, p_tx->doorbell_addr, *((u32 *)&p_tx->db_msg));
DP_VERBOSE(p_hwfn, (ECORE_MSG_TX_QUEUED | ECORE_MSG_LL2),
"LL2 [q 0x%02x cid 0x%08x type 0x%08x] Doorbelled [producer 0x%04x]\n",
p_ll2_conn->queue_id, p_ll2_conn->cid,
p_ll2_conn->input.conn_type,
p_tx->db_msg.spq_prod);
}
enum _ecore_status_t ecore_ll2_prepare_tx_packet(
void *cxt,
u8 connection_handle,
struct ecore_ll2_tx_pkt_info *pkt,
bool notify_fw)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
struct ecore_ll2_tx_packet *p_curp = OSAL_NULL;
struct ecore_ll2_info *p_ll2_conn = OSAL_NULL;
struct ecore_ll2_tx_queue *p_tx;
struct ecore_chain *p_tx_chain;
unsigned long flags;
enum _ecore_status_t rc = ECORE_SUCCESS;
p_ll2_conn = ecore_ll2_handle_sanity(p_hwfn, connection_handle);
if (p_ll2_conn == OSAL_NULL)
return ECORE_INVAL;
p_tx = &p_ll2_conn->tx_queue;
p_tx_chain = &p_tx->txq_chain;
if (pkt->num_of_bds > p_ll2_conn->input.tx_max_bds_per_packet)
return ECORE_IO; /* coalescing is requireed */
OSAL_SPIN_LOCK_IRQSAVE(&p_tx->lock, flags);
if (p_tx->cur_send_packet) {
rc = ECORE_EXISTS;
goto out;
}
/* Get entry, but only if we have tx elements for it */
if (!OSAL_LIST_IS_EMPTY(&p_tx->free_descq))
p_curp = OSAL_LIST_FIRST_ENTRY(&p_tx->free_descq,
struct ecore_ll2_tx_packet,
list_entry);
if (p_curp && ecore_chain_get_elem_left(p_tx_chain) < pkt->num_of_bds)
p_curp = OSAL_NULL;
if (!p_curp) {
rc = ECORE_BUSY;
goto out;
}
/* Prepare packet and BD, and perhaps send a doorbell to FW */
ecore_ll2_prepare_tx_packet_set(p_tx, p_curp, pkt, notify_fw);
ecore_ll2_prepare_tx_packet_set_bd(p_hwfn, p_ll2_conn, p_curp,
pkt);
ecore_ll2_tx_packet_notify(p_hwfn, p_ll2_conn);
out:
OSAL_SPIN_UNLOCK_IRQSAVE(&p_tx->lock, flags);
return rc;
}
enum _ecore_status_t ecore_ll2_set_fragment_of_tx_packet(void *cxt,
u8 connection_handle,
dma_addr_t addr,
u16 nbytes)
{
struct ecore_ll2_tx_packet *p_cur_send_packet = OSAL_NULL;
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
struct ecore_ll2_info *p_ll2_conn = OSAL_NULL;
u16 cur_send_frag_num = 0;
struct core_tx_bd *p_bd;
unsigned long flags;
p_ll2_conn = ecore_ll2_handle_sanity(p_hwfn, connection_handle);
if (p_ll2_conn == OSAL_NULL)
return ECORE_INVAL;
if (!p_ll2_conn->tx_queue.cur_send_packet)
return ECORE_INVAL;
p_cur_send_packet = p_ll2_conn->tx_queue.cur_send_packet;
cur_send_frag_num = p_ll2_conn->tx_queue.cur_send_frag_num;
if (cur_send_frag_num >= p_cur_send_packet->bd_used)
return ECORE_INVAL;
/* Fill the BD information, and possibly notify FW */
p_bd = p_cur_send_packet->bds_set[cur_send_frag_num].txq_bd;
DMA_REGPAIR_LE(p_bd->addr, addr);
p_bd->nbytes = OSAL_CPU_TO_LE16(nbytes);
p_cur_send_packet->bds_set[cur_send_frag_num].tx_frag = addr;
p_cur_send_packet->bds_set[cur_send_frag_num].frag_len = nbytes;
p_ll2_conn->tx_queue.cur_send_frag_num++;
OSAL_SPIN_LOCK_IRQSAVE(&p_ll2_conn->tx_queue.lock, flags);
ecore_ll2_tx_packet_notify(p_hwfn, p_ll2_conn);
OSAL_SPIN_UNLOCK_IRQSAVE(&p_ll2_conn->tx_queue.lock, flags);
return ECORE_SUCCESS;
}
enum _ecore_status_t ecore_ll2_terminate_connection(void *cxt,
u8 connection_handle)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
struct ecore_ll2_info *p_ll2_conn = OSAL_NULL;
enum _ecore_status_t rc = ECORE_NOTIMPL;
struct ecore_ptt *p_ptt;
p_ptt = ecore_ptt_acquire(p_hwfn);
if (!p_ptt)
return ECORE_AGAIN;
p_ll2_conn = ecore_ll2_handle_sanity_lock(p_hwfn, connection_handle);
if (p_ll2_conn == OSAL_NULL) {
rc = ECORE_INVAL;
goto out;
}
/* Stop Tx & Rx of connection, if needed */
if (ECORE_LL2_TX_REGISTERED(p_ll2_conn)) {
rc = ecore_sp_ll2_tx_queue_stop(p_hwfn, p_ll2_conn);
if (rc != ECORE_SUCCESS)
goto out;
ecore_ll2_txq_flush(p_hwfn, connection_handle);
}
if (ECORE_LL2_RX_REGISTERED(p_ll2_conn)) {
rc = ecore_sp_ll2_rx_queue_stop(p_hwfn, p_ll2_conn);
if (rc)
goto out;
ecore_ll2_rxq_flush(p_hwfn, connection_handle);
}
if (p_ll2_conn->input.conn_type == ECORE_LL2_TYPE_OOO)
ecore_ooo_release_all_isles(p_hwfn->p_ooo_info);
if (p_ll2_conn->input.conn_type == ECORE_LL2_TYPE_FCOE) {
if (!OSAL_TEST_BIT(ECORE_MF_UFP_SPECIFIC,
&p_hwfn->p_dev->mf_bits))
ecore_llh_remove_protocol_filter(p_hwfn->p_dev, 0,
ECORE_LLH_FILTER_ETHERTYPE,
0x8906, 0);
ecore_llh_remove_protocol_filter(p_hwfn->p_dev, 0,
ECORE_LLH_FILTER_ETHERTYPE,
0x8914, 0);
}
out:
ecore_ptt_release(p_hwfn, p_ptt);
return rc;
}
static void ecore_ll2_release_connection_ooo(struct ecore_hwfn *p_hwfn,
struct ecore_ll2_info *p_ll2_conn)
{
struct ecore_ooo_buffer *p_buffer;
if (p_ll2_conn->input.conn_type != ECORE_LL2_TYPE_OOO)
return;
ecore_ooo_release_all_isles(p_hwfn->p_ooo_info);
while ((p_buffer = ecore_ooo_get_free_buffer(p_hwfn->p_ooo_info))) {
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
p_buffer->rx_buffer_virt_addr,
p_buffer->rx_buffer_phys_addr,
p_buffer->rx_buffer_size);
OSAL_FREE(p_hwfn->p_dev, p_buffer);
}
}
void ecore_ll2_release_connection(void *cxt,
u8 connection_handle)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
struct ecore_ll2_info *p_ll2_conn = OSAL_NULL;
p_ll2_conn = ecore_ll2_handle_sanity(p_hwfn, connection_handle);
if (p_ll2_conn == OSAL_NULL)
return;
if (ECORE_LL2_RX_REGISTERED(p_ll2_conn)) {
p_ll2_conn->rx_queue.b_cb_registred = false;
ecore_int_unregister_cb(p_hwfn,
p_ll2_conn->rx_queue.rx_sb_index);
}
if (ECORE_LL2_TX_REGISTERED(p_ll2_conn)) {
p_ll2_conn->tx_queue.b_cb_registred = false;
ecore_int_unregister_cb(p_hwfn,
p_ll2_conn->tx_queue.tx_sb_index);
}
OSAL_FREE(p_hwfn->p_dev, p_ll2_conn->tx_queue.descq_array);
ecore_chain_free(p_hwfn->p_dev, &p_ll2_conn->tx_queue.txq_chain);
OSAL_FREE(p_hwfn->p_dev, p_ll2_conn->rx_queue.descq_array);
ecore_chain_free(p_hwfn->p_dev, &p_ll2_conn->rx_queue.rxq_chain);
ecore_chain_free(p_hwfn->p_dev, &p_ll2_conn->rx_queue.rcq_chain);
ecore_cxt_release_cid(p_hwfn, p_ll2_conn->cid);
ecore_ll2_release_connection_ooo(p_hwfn, p_ll2_conn);
OSAL_MUTEX_ACQUIRE(&p_ll2_conn->mutex);
p_ll2_conn->b_active = false;
OSAL_MUTEX_RELEASE(&p_ll2_conn->mutex);
}
/* ECORE LL2: internal functions */
enum _ecore_status_t ecore_ll2_alloc(struct ecore_hwfn *p_hwfn)
{
struct ecore_ll2_info *p_ll2_info;
u8 i;
/* Allocate LL2's set struct */
p_ll2_info = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
sizeof(struct ecore_ll2_info) *
ECORE_MAX_NUM_OF_LL2_CONNECTIONS);
if (!p_ll2_info) {
DP_NOTICE(p_hwfn, false,
"Failed to allocate `struct ecore_ll2'\n");
return ECORE_NOMEM;
}
p_hwfn->p_ll2_info = p_ll2_info;
for (i = 0; i < ECORE_MAX_NUM_OF_LL2_CONNECTIONS; i++) {
#ifdef CONFIG_ECORE_LOCK_ALLOC
if (OSAL_MUTEX_ALLOC(p_hwfn, &p_ll2_info[i].mutex))
goto handle_err;
if (OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_ll2_info[i].rx_queue.lock))
goto handle_err;
if (OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_ll2_info[i].tx_queue.lock))
goto handle_err;
#endif
p_ll2_info[i].my_id = i;
}
return ECORE_SUCCESS;
#ifdef CONFIG_ECORE_LOCK_ALLOC
handle_err:
ecore_ll2_free(p_hwfn);
return ECORE_NOMEM;
#endif
}
void ecore_ll2_setup(struct ecore_hwfn *p_hwfn)
{
int i;
for (i = 0; i < ECORE_MAX_NUM_OF_LL2_CONNECTIONS; i++)
OSAL_MUTEX_INIT(&p_hwfn->p_ll2_info[i].mutex);
}
void ecore_ll2_free(struct ecore_hwfn *p_hwfn)
{
#ifdef CONFIG_ECORE_LOCK_ALLOC
int i;
#endif
if (!p_hwfn->p_ll2_info)
return;
#ifdef CONFIG_ECORE_LOCK_ALLOC
for (i = 0; i < ECORE_MAX_NUM_OF_LL2_CONNECTIONS; i++) {
OSAL_SPIN_LOCK_DEALLOC(&p_hwfn->p_ll2_info[i].rx_queue.lock);
OSAL_SPIN_LOCK_DEALLOC(&p_hwfn->p_ll2_info[i].tx_queue.lock);
OSAL_MUTEX_DEALLOC(&p_hwfn->p_ll2_info[i].mutex);
}
#endif
OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_ll2_info);
p_hwfn->p_ll2_info = OSAL_NULL;
}
static void _ecore_ll2_get_port_stats(struct ecore_hwfn *p_hwfn,
struct ecore_ptt *p_ptt,
struct ecore_ll2_stats *p_stats)
{
struct core_ll2_port_stats port_stats;
OSAL_MEMSET(&port_stats, 0, sizeof(port_stats));
ecore_memcpy_from(p_hwfn, p_ptt, &port_stats,
BAR0_MAP_REG_TSDM_RAM +
TSTORM_LL2_PORT_STAT_OFFSET(MFW_PORT(p_hwfn)),
sizeof(port_stats));
p_stats->gsi_invalid_hdr +=
HILO_64_REGPAIR(port_stats.gsi_invalid_hdr);
p_stats->gsi_invalid_pkt_length +=
HILO_64_REGPAIR(port_stats.gsi_invalid_pkt_length);
p_stats->gsi_unsupported_pkt_typ +=
HILO_64_REGPAIR(port_stats.gsi_unsupported_pkt_typ);
p_stats->gsi_crcchksm_error +=
HILO_64_REGPAIR(port_stats.gsi_crcchksm_error);
}
static void _ecore_ll2_get_tstats(struct ecore_hwfn *p_hwfn,
struct ecore_ptt *p_ptt,
struct ecore_ll2_info *p_ll2_conn,
struct ecore_ll2_stats *p_stats)
{
struct core_ll2_tstorm_per_queue_stat tstats;
u8 qid = p_ll2_conn->queue_id;
u32 tstats_addr;
OSAL_MEMSET(&tstats, 0, sizeof(tstats));
tstats_addr = BAR0_MAP_REG_TSDM_RAM +
CORE_LL2_TSTORM_PER_QUEUE_STAT_OFFSET(qid);
ecore_memcpy_from(p_hwfn, p_ptt, &tstats,
tstats_addr,
sizeof(tstats));
p_stats->packet_too_big_discard +=
HILO_64_REGPAIR(tstats.packet_too_big_discard);
p_stats->no_buff_discard +=
HILO_64_REGPAIR(tstats.no_buff_discard);
}
static void _ecore_ll2_get_ustats(struct ecore_hwfn *p_hwfn,
struct ecore_ptt *p_ptt,
struct ecore_ll2_info *p_ll2_conn,
struct ecore_ll2_stats *p_stats)
{
struct core_ll2_ustorm_per_queue_stat ustats;
u8 qid = p_ll2_conn->queue_id;
u32 ustats_addr;
OSAL_MEMSET(&ustats, 0, sizeof(ustats));
ustats_addr = BAR0_MAP_REG_USDM_RAM +
CORE_LL2_USTORM_PER_QUEUE_STAT_OFFSET(qid);
ecore_memcpy_from(p_hwfn, p_ptt, &ustats,
ustats_addr,
sizeof(ustats));
p_stats->rcv_ucast_bytes += HILO_64_REGPAIR(ustats.rcv_ucast_bytes);
p_stats->rcv_mcast_bytes += HILO_64_REGPAIR(ustats.rcv_mcast_bytes);
p_stats->rcv_bcast_bytes += HILO_64_REGPAIR(ustats.rcv_bcast_bytes);
p_stats->rcv_ucast_pkts += HILO_64_REGPAIR(ustats.rcv_ucast_pkts);
p_stats->rcv_mcast_pkts += HILO_64_REGPAIR(ustats.rcv_mcast_pkts);
p_stats->rcv_bcast_pkts += HILO_64_REGPAIR(ustats.rcv_bcast_pkts);
}
static void _ecore_ll2_get_pstats(struct ecore_hwfn *p_hwfn,
struct ecore_ptt *p_ptt,
struct ecore_ll2_info *p_ll2_conn,
struct ecore_ll2_stats *p_stats)
{
struct core_ll2_pstorm_per_queue_stat pstats;
u8 stats_id = p_ll2_conn->tx_stats_id;
u32 pstats_addr;
OSAL_MEMSET(&pstats, 0, sizeof(pstats));
pstats_addr = BAR0_MAP_REG_PSDM_RAM +
CORE_LL2_PSTORM_PER_QUEUE_STAT_OFFSET(stats_id);
ecore_memcpy_from(p_hwfn, p_ptt, &pstats,
pstats_addr,
sizeof(pstats));
p_stats->sent_ucast_bytes += HILO_64_REGPAIR(pstats.sent_ucast_bytes);
p_stats->sent_mcast_bytes += HILO_64_REGPAIR(pstats.sent_mcast_bytes);
p_stats->sent_bcast_bytes += HILO_64_REGPAIR(pstats.sent_bcast_bytes);
p_stats->sent_ucast_pkts += HILO_64_REGPAIR(pstats.sent_ucast_pkts);
p_stats->sent_mcast_pkts += HILO_64_REGPAIR(pstats.sent_mcast_pkts);
p_stats->sent_bcast_pkts += HILO_64_REGPAIR(pstats.sent_bcast_pkts);
}
enum _ecore_status_t __ecore_ll2_get_stats(void *cxt,
u8 connection_handle,
struct ecore_ll2_stats *p_stats)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt;
struct ecore_ll2_info *p_ll2_conn = OSAL_NULL;
struct ecore_ptt *p_ptt;
if ((connection_handle >= ECORE_MAX_NUM_OF_LL2_CONNECTIONS) ||
!p_hwfn->p_ll2_info) {
return ECORE_INVAL;
}
p_ll2_conn = &p_hwfn->p_ll2_info[connection_handle];
p_ptt = ecore_ptt_acquire(p_hwfn);
if (!p_ptt) {
DP_ERR(p_hwfn, "Failed to acquire ptt\n");
return ECORE_INVAL;
}
if (p_ll2_conn->input.gsi_enable)
_ecore_ll2_get_port_stats(p_hwfn, p_ptt, p_stats);
_ecore_ll2_get_tstats(p_hwfn, p_ptt, p_ll2_conn, p_stats);
_ecore_ll2_get_ustats(p_hwfn, p_ptt, p_ll2_conn, p_stats);
if (p_ll2_conn->tx_stats_en)
_ecore_ll2_get_pstats(p_hwfn, p_ptt, p_ll2_conn, p_stats);
ecore_ptt_release(p_hwfn, p_ptt);
return ECORE_SUCCESS;
}
enum _ecore_status_t ecore_ll2_get_stats(void *cxt,
u8 connection_handle,
struct ecore_ll2_stats *p_stats)
{
OSAL_MEMSET(p_stats, 0, sizeof(*p_stats));
return __ecore_ll2_get_stats(cxt, connection_handle, p_stats);
}
/**/
#ifdef _NTDDK_
#pragma warning(pop)
#endif
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